Class.$("Person",{
	_constructor : function (name,age) { 
		var me = this;
		me.name = name;
		me.age = age;
	},
	showName: function () {
		alert(this.name);
	},
	showAge: function () {
		alert(this.age);
	},
	setName: function (name) {
		this.name = name;
	}
});

Class.$("Man").extends("Person",{
	_constructor : function (name,age,sex) {
		_baseCon(name,age);
		var me = this;
		me.sex = sex;
	},
	showSex: function(){
		alert(this.sex);
	},
	setSex: function(sex){
		this.sex = sex;
	},
});